252523280 has 20 divisors (see below), whose sum is σ = 587116812. Its totient is φ = 101009280.

The previous prime is 252523277. The next prime is 252523283. The reversal of 252523280 is 82325252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (252523277) and next prime (252523283).

It can be written as a sum of positive squares in 2 ways, for example, as 41576704 + 210946576 = 6448^2 + 14524^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (252523283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578191 + ... + 1578350.

Almost surely, 2^252523280 is an apocalyptic number.

252523280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252523280 is an abundant number, since it is smaller than the sum of its proper divisors (334593532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252523280 is a wasteful number, since it uses less digits than its factorization.

252523280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156554 (or 3156548 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 252523280 is about 15890.9810899139. The cubic root of 252523280 is about 632.0728565263.

The spelling of 252523280 in words is "two hundred fifty-two million, five hundred twenty-three thousand, two hundred eighty".